Thanks to this universal clamp you can easily mount threaded mirrors on your handlebar.
Found the mirror of your choice, but it turns out to be mounted through a thread, while you prefer to mount it on your handlebar? No problem at all. This chromed aluminium die-cast adapter can easily be mounted on any handlebar with a diameter of 22 mm. The thread is M10 compatible, which is standard for many rear view mirrors.
Those who have little space left on their handlebars might like to know that the clamp is 20 mm wide.